| Year | Total Expenses | Average Net Price |
|---|---|---|
| 2015 | N/A | N/A |
| 2016 | $23,586 | $18,680 |
| 2017 | $23,518 | $18,406 |
| 2018 | $23,518 | $17,949 |
| 2019 | $24,280 | $18,372 |
| 2020 | $30,590 | $24,682 |
| 2021* | $31,086 | $24,791 |
| 2022* | $31,589 | $24,900 |
| 2023* | $32,101 | $25,009 |
| 2024* | $32,621 | $25,119 |
| 2025* | $33,149 | $25,230 |
